Dallas Theological Seminary

How creative affects conversion rate in a Facebook ad

Experiment ID: #9816

Dallas Theological Seminary

The DTS mission is, “to glorify God by equipping godly servant-leaders for the proclamation of His Word and the building up of the body of Christ worldwide.” They strive to help men and women fulfill the Great Commission and the Great Commandment, or more simply: Teach Truth. Love Well.

Experiment Summary

Ended On: 12/05/2018

DTS launched a new online course on the books of Jonah & Ruth. They tested two forms of creative for the Facebook ad- one that had contrasting colors and one that was more simple with brighter white letters. They wanted to see which ad performed better in terms of course conversions. Copy remained the same on both.

Research Question

Which of these two forms of ad creative influenced more people to convert on the landing page?

Design

C: Control
T1: Treatment #1

Results

 Treatment NameConv. RateRelative DifferenceConfidence
C: Control 1.1%
T1: Treatment #1 1.3%21.3% 99.9%

This experiment has a required sample size of 18,184 in order to be valid. Since the experiment had a total sample size of 143,715, and the level of confidence is above 95% the experiment results are valid.

Flux Metrics Affected

The Flux Metrics analyze the three primary metrics that affect revenue (traffic, conversion rate, and average gift). This experiment produced the following results:

    0% increase in traffic
× 21.3% increase in conversion rate
× 0% increase in average gift

Key Learnings

The treatment version saw an increased conversion rate of 21% over the control. Besides the actual impact of the ad, the treatment version also had a greater congruency between the creative within the ad and the creative on the landing page. This is likely the reason that more people converted on the landing page after viewing the treatment ad, versus the control.


Experiment Documented by Allison Autrey

Question about experiment #9816

If you have any questions about this experiment or would like additional details not discussed above, please feel free to contact them directly.